Resolve "update import_oncat to use oidc tokens"

Yakubov, Sergeyrequested to merge
16-update-import_oncat-to-use-oidc-tokens into main

we receive oidc tokens (id and refresh ones) in a tool via environment variables, update id token if needed, and scp files using the oidc-pam module.

Later can see if we can get files using bioblend (when file sources are ready for auth via a token).

Closes #16 (closed)

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